Early ranking variance chart. Includes ISS, McKeen's, FC, LWOS and Button's rankings.
Vertical lines indicate range of ranking while the triangles are the average rank.
Seems to indicate a clear top 12 of McDavid, Eichel, Strome, Marner, Hanifin, Provorov, Werenski, Crouse, Rantanen, Barzal, Connor and Meieter.
Zacha seems to be a wild card and then from there on it gets a bit crazy.